Wunderlist update to v3.3.0.29 (76080df) today

I was rather surprised today when Wunderlist on Windows 10 Phone and on PC was updated to v3.3.0.29 (76080df). Apart from changing the copyright date to 2018 and causing the app on W10 Phone to close when selecting the Settings-Account tab, I haven't noticed other changes. (Backup doesn't run successfully on the app in Edge.) Were there finally behind-the-scenes changes that will enable porting items to Microsoft To-Do?